This is the HTML rendering of Ecma-262 Edition 5.1, The ECMAScript Language Specification.
The PDF rendering of this document is located at http://www.ecma-international.org/ecma-262/5.1/ECMA-262.pdf.
The PDF version is the definitive specification. Any discrepancies between this HTML version and the PDF version are unintentional.
Xah's note: this document is from http://www.ecma-international.org/ecma-262/5.1/. Mirrored here on . The CSS style has been modified, and reformatted into one chapter per HTML page. The content has not been modified in any way.